成人英语三级考试

【单选题】Jane had (a great deal of) trouble (to concentrate on) her study (because of) the noise (in the next) room.
A．a great deal of
B．to concentrate on
C．because of
D．in the next

网考网参考答案：B
网考网解析：
应改为concentrating on。have trouble doing sth．做……有困难。 查看试题解析出处>>